CN101743728B - Method of establishing a hrpd signal link - Google Patents

Method of establishing a hrpd signal link Download PDF

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Publication number
CN101743728B
CN101743728B CN2008800246983A CN200880024698A CN101743728B CN 101743728 B CN101743728 B CN 101743728B CN 2008800246983 A CN2008800246983 A CN 2008800246983A CN 200880024698 A CN200880024698 A CN 200880024698A CN 101743728 B CN101743728 B CN 101743728B
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hrpd
access
access network
sff
network
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CN101743728A (en
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乔治·切里安
普尔尼玛·A·拉尔瓦尼
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Motorola Mobility LLC
Google Technology Holdings LLC
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Motorola Mobility LLC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0019—Control or signalling for completing the hand-off for data sessions of end-to-end connection adapted for mobile IP [MIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off

Abstract

A method (10) of establishing an alternate HRPD signaling link between an HRPD access network and an access terminal over a non-HRPD access is disclosed. It includes: providing (12) a signal forwarding function (SFF) (22) between an access terminal (AT) (24) and a high rate packet data (HRPD) access network (AN) (26); establishing (14) a data tunnel (28) between the access terminal (24) and the SFF (22); exchanging (16) HRPD signaling messages and HRPD data via the data tunnel (28); identifying (18) the HRPD access network (26) and the access terminal (24) over non-HRPD access by the SFF (22), by reading a header with certain identifiers and mapping the header to an address of the access terminal or network; and forwarding (20) the HRPD signaling messages and the HRPD data that arrive at the SFF (22) from the access terminal (24) and the HRPD access network (26) to the HRPD access network (26) and the access terminal (24), respectively. The method (10) performs an initiation and session establishment procedure, minimizes the time, disruption and packet loss during handoff to a HRPD access network and enables seamless mobility.

Description

Set up the method for HRPD signal link
Technical field
The present invention relates to a kind of method of the HRPD of foundation signal link, and more specifically, relate to a kind of by non-HRPD access access terminal and access network between set up alternative HRPD signaling link and on this alternative signaling link, set up in advance the method for HRPD session.
Background technology
Existence is to the interest of exploitation multi-mode equipment, and this equipment can seamlessly be transferred to data, voice and video service another radiotechnics and can adverse effect do not arranged to user's experience from a radiotechnics.
A kind of such equipment is 3GPP2-EVDO, and itself and other wireless standard interoperability is such as 3GPP Long Term Evolution (LTE), WLAN, WiMaX etc.Switch between the technology of the type and obtaining special concern, reason is to exist the very big interest to integrated different air interface technologies.And move forward 4G to and newer operator emerges in large numbers in the space, broadband along with main cellular carrier, in the foreseeable future of 4G technology maturation, for roaming and operator's internetwork roaming in the operator, all need multimode radio device.
In the real time data session such as the technical initiation of LTE, for example voip call, removable or roam in the zone that wherein only HRPD can use.Be necessary voip call is seamlessly transferred to HRPD and do not had long delay from LTE.
Yet HRPD requires to set up session before the calling that allows to carry out/receive any type.Initialization and the session establishment of HRPD comprise the steps, it requires the signaling exchange between mobile device and the HRPD network: 1. unicast access terminal identifier accords with (UATI) assignment process, 2.HRPD session establishment process, 3. access authentication, 4. point-to-point protocol (PPP) is set up, and 5.IP sets up in order to switching to HRPD future.Yet complexity and cost constraint are limited to this mobile device typically to have a transmitter antenna, and this is standard industry practice now.
In the example of above-detailed, when this equipment transmits and receives on another radio interface actively, need to exist extra transmitter to be used for the signaling exchange of initialization and session establishment.
The present invention proposes such a kind of method and solution: the method and solution are in the situation that needn't use two transmitter antennas, by mobile device movable on non-HRPD network or other air interfaces such as LTE, WLAN, WiMax, carry out initialization and the session establishment process of HRPD, so that make the interruption and the packet loss that switch or transfer in the process of HRPD network minimum.
Therefore, need to pass through in non-HRPD air interface (as example, this term comprises LTE, WLAN, WiMax etc.) upper movable mobile device, carry out initialization and the session establishment process of HRPD, so that make the interruption and the packet loss that switch or transfer in the process of HRPD air interface minimum, this be cost effectively, fast or user-friendly and do not need example such as, two transmitter antennas.
Description of drawings
When reading by reference to the accompanying drawings, by with reference to following embodiment, will understand best the embodiment of the inventive aspect of present disclosure, in the accompanying drawings:
Fig. 1 is the simplified illustration according to the HRPD signaling in the non-HRPD access of the present invention.
Fig. 2 is the block diagram of setting up the method for HRPD signal link by non-HRPD access according to of the present invention.
Fig. 3 illustrated according to of the present invention as in the dotted line about 3GPP2, the HRPD IOS framework that defines in the HRPD_IOS standard of A.S0008, it comprises signal forwarding capability and new interface (Axx).
Fig. 4 is according to the flow chart for set up in time the HRPD signal link by non-HRPD access of the present invention, this figure comprises for the row of each access terminal (AT), signal forwarding capability (SFF), access network (AN), access network-AAA (AN-AAA) and time a～h, has illustrated how to open or set up link.
Fig. 5 is according to the flow chart for close in time (or stopping) HRPD signal link by non-HRPD access of the present invention, this figure comprises the row for each access terminal (AT), signal forwarding capability (SFF), access network (AN), access network-AAA (AN-AAA) and time a～f, has illustrated how to stop or stopping link.
Fig. 6 illustrates the flow chart that exchanges in time the HRPD signaling by the non-HRPD access of using TCP/IP according to of the present invention, and this figure comprises the row for each access terminal (AT), signal forwarding capability (SFF), access network (AN), the sharp time a～c of access network-AAA (AN-AAA).
Fig. 7 is that it has illustrated default signaling paths and path, default data such as the explanation such as the protocol architecture of HRPD standard I S856 definition of describing in detail herein.
Fig. 8 is the environment explanation that illustrates according to the protocol architecture such as the HRPD standard I S856 among Fig. 7 definition of the present invention, comprises signaling adaptation agreement (SAP) and is in the signaling paths of opening (operation) position.
Fig. 9 is according to the signaling adaptation agreement among Fig. 8 of the present invention and the embodiment that is in the exemplary signaling paths in the open mode (operation).
Figure 10 be according to the signaling adaptation agreement among Fig. 8 of the present invention and be in open mode (operation) but in second embodiment of alternative of exemplary signaling paths.
Figure 11 be according to the signaling adaptation agreement among Fig. 8 of the present invention and be in open mode (operation) but in the 3rd embodiment of alternative of exemplary signaling paths.
Figure 12 shows the state machine that accesses terminal according to the signaling adaptation agreement among Fig. 8 of the present invention, and it comprises closed condition, sets up state and open mode, has illustrated how to open and close the alternative link.
Figure 13 shows the access network state machine according to the signaling adaptation agreement among Fig. 8 of the present invention, and it comprises closed condition, sets up state and open mode, has illustrated how to open and close the alternative link.
Figure 14 is that this figure comprises the row for each alternative link, signaling network agreement (SNP), signaling adaptation agreement (SAP), access network (AN) and time a～l according to the flow chart for set up in time the HRPD signal link by non-HRPD air interface of the present invention.
Figure 15 is for HRPD message and HRPD data are transformed into the block diagram that can access by non-HRPD the embodiment of the signaling adaptation method on the universal container that transmits according to of the present invention.
Embodiment
With reference to Fig. 1 and 2, show the method 10 that accesses at the HRPD access network and set up between accessing terminal alternative HRPD signaling link by non-HRPD.Method 10 generally includes to be provided step 12, establishment step 14, exchange step 16, identification step 18 and transmits step 20.In more detail, method 10 comprises: provide 12 signal forwarding capabilitys (SFF) 22 between (AT) 24 and HRPD (high rate packet data) (HRPD) access network (AN) 26 accessing terminal; Access terminal 24 and SFF 22 between set up 14 data tunnels 28; Via data tunnel 28 exchange 16HRPD signaling message and HRPD data; Comprise HRPD sector identification by reading, the header of access terminal identification and stream identification and this header is mapped to accesses terminal and the address of one of access network, access to identify 18HRPD access network 26 and access terminal 24 by non-HRPD by SFF 22; And will arrive the HRPD signaling message of SFF 22 and HRPD data from access terminal 24 and HRPD access network 26 transmit respectively 20 to HRPD access networks 26 and access terminal 24.Advantageously, method 10 is carried out and is initiated and the session establishment process, makes time, interruption and the packet loss minimum in the process that switches to the HRPD access network and realizes seamless mobility.
In more detail, method 10 execution are about initiation and the session establishment process of HRPD.For example, in use, accessing at non-HRPD such as the AT 24 of mobile device (is movable such as 3GPP Long Term Evolution (LTE), WLAN (wireless local area network) (WLAN) and WIMax).Method 10 is suitable for making minimum for the time in the handoff procedure of HRPD access network, interruption and packet loss and makes the user experience maximum.In one embodiment, the HRPD signaling message is positioned on the TCP/IP link, has the header of new definition with unique identification HRPD access network.In addition, method 10 is particularly suitable in multi-mode equipment or the middle use that accesses terminal, and wherein HRPD is as a kind of access technology.In other words, method 10 provides the seamless mobility between the sharp non-HRPD air interface technologies of HRPD.
Hereinafter describe the term that uses in the whole text in the application and the concise and to the point definition of abbreviation in detail.Unless offer some clarification on, otherwise all such terms and abbreviation have its common its ordinary meaning.Definition herein is take clear as purpose.
1. evolution data optimization or evolution data are abbreviated as EV-DO or EVDO or 1xEV.
2. high data rate (HDR) and HRPD (high rate packet data) (HRPD) mean usually for the communication standard by the radio signal wirelessly transmitting data.HRPD can provide the broadband internet access and comprise the several data service of Real-time Data Service, such as voice over internet protocol (VoIP).
3.EVDO the use multiplex technique makes the data volume of emission maximum such as CDMA (code division multiple access) and Frequency Division Duplexing (FDD) (FDD).It is by third generation partner program 2 (3GPP2) standardization, and as the part of CDMA2000 standard family and by in the world many mobile phone service providers employings, and those had before used providers of cdma networks especially.In the 3GPP2 C.S0024-A that is entitled as " cdma2000 High Rate Packet Data Air InterfaceSpecification " in September, 2006 and the more detailed description of CDMA2000 HRPD (high rate packet data) (HRPD) EVDO (evolution data optimization) is provided in TIA-IS-856 (also being called as IS856).
4.HRPD session means to access terminal (AT) and access network (AN) between shared state.Be different from and open session, AT can not communicate by letter with AN in the situation of the session of not opening.
5. connection or private radio are electrically connected the particular state that means airlink, and wherein AT is assigned forward traffic channel, reverse traffic channel and related media into control channel.
6. as used herein, the HRPD abbreviation usually means and comprises, for example, HDR, EV-DO, EVDO, 1xEV, CDMA, CDMA2000 evolution data optimization (EVDO), standard TIA-IS-856,3GPP2HRPD inter-operability specification A.S0008, based on standard TIA-IS-835 of cdma2000 Wireless IP network etc.
7.3G mean third generation cellular technology
8.3GPP mean third generation partner program, the standardisation bodies of exploitation GSM standard and evolution thereof
9.3GPP2 mean third generation partner program 2, the standardisation bodies of exploitation cdma2000 development plan
10.4G mean the 4th generation the broadband wireless technology
11.WiMAX mean World Interoperability for Microwave Access, WiMax
12.TCP transmission control protocol of meaning (part of TCP/IP)
13.IP be Internet protocol (part of TCP/IP)
In one embodiment, method 20 is included on the HRPD air interface and sets up before the Traffic Channel, sets up in advance the HRPD session by non-HRPD access.In order to carry out the switching between non-HRPD access and the HRPD access, need to before switching, set up HRPD session (under suitable radio frequency).Be such as the problem in the real time service of ip voice (VoIP), the HRPD session establishment consumes the time period of several seconds, and this can introduce unacceptable interruption in communication.Switch in order to support low delay (low settling time) active session between non-HRPD and the HRPD access, method 20 provides a solution and valid process, be used for before radio-frequency antenna is converted to the HRPD access from non-HRPD access, in non-HRPD access, sets up in advance HRPD and can living.
" HRPD access " comprises one of HRPD air interface, HRPD access network and HRPD core network at least such as term used herein, wherein this access network comprises radio network controller, (one or more) base station etc., wherein this core network comprises packet data service network (PDSN), Mobile IP home agent, Mobile IP Foreign Agent etc., and " non-HRPD access " comprises one of non-HRPD air interface, non-HRPD access network and non-HRPD core network at least such as term used herein.
In one embodiment, method 20 is included on the HRPD air interface and sets up before the Traffic Channel, by access terminal authentication and set up in advance HRPD session (wherein to access terminal be mobile device to this HRPD multi-mode, one or the more than access technology of its realization except the HRPD access technology) of HRPD multi-mode movable in non-HRPD access.Preferably, this is included in sets up before the Traffic Channel, and the UATI assignment, the protocol subtypes that obtain all protocol layers of HRPD are consulted and the protocol configuration parameters negotiation.Switch for the active session of carrying out between non-HRPD and the HRPD, may need to access terminal obtains UATI by means of the UATI assignment from access network, agreement protocol subtype and protocol configuration parameters at the HRPD access network and between accessing terminal.Yet in the known real time service such as VoIP, these processes can consume the unacceptable time period (disadvantageous user experience) and can cause unacceptable interruption in communication.Use as mentioned the active session just sending and receiving user data on private radio is electrically connected that means to access terminal.
Advantageously, switch in order to support low delay (it is minimum that the interruption in the communication reduces to) active session between non-HRPD and the HRPD access, the method is included in before radio-frequency antenna is converted to the HRPD access from non-HRPD access, sets up valid process in the time of on being in non-HRPD access with acquisition HRPD UATI, HRPD protocol subtypes and configuration parameter.
In one embodiment, the data tunnel among Fig. 1 is safe so that make the privacy that possibility is minimum and protection accesses terminal of the security attack on the access network.
In another embodiment, the method comprises step that allow to transmit the HRPD access channel message that accesses terminal and access terminal for non-HRPD air interface from non-HRPD air interface.This feature for example can reduce and carry out the time that the switching from non-HRPD network to the HRPD network consumes.In this embodiment, desired is that the required access process for acquisition HRPD Traffic Channel on the HRPD is avoided, and therefore advantageously improves the user's experience in the handoff procedure.
As this should be understood by those skilled in the art, access network can comprise base station controller, radio network controller, a plurality of headend equipments etc.Be appreciated that the base station via one or more transceivers provide access terminal and access network between radio frequency (RF) interface.Access network and HRPD access terminal exchange of signaling message so that set up session, maintain sessions etc.
In another embodiment, the method can comprise: provide access terminal and SFF between interface; And provide interface between SFF and the access network.In this embodiment, SFF can be defined as standalone module or feature, so that realize and upgradability based on access network load and carrier network layout facilitation access network.Advantageously, access terminal and SFF between interface can support the different interoperabilities that access terminal between manufacturer and the SFF manufacturer.Similarly, the interface that is defined between SFF and the HRPD access network provides and supports different HRPD access network manufacturers and the interoperability between the SFF manufacturer.
In a preferred embodiment, the method comprises: HRPD is accessed terminal identify the IP address that is mapped to non-HRPD network assigned.In order to keep non-HRPD network needn't process the HRPD customizing messages, importantly, access terminal and SFF between the data tunnel set up use conventional transfer system, and TCP/IP provides this option.The identification that accesses terminal that is used for identification HRPD access is necessary to be mapped to the TCP/IP territory, wherein uses the IP address.This feature has realized this function.
And in a preferred embodiment, the method comprises by sector ID being mapped to the IP address of HRPD access network, by the message of IP-based SFF routed encapsulation.The HRPD signaling message that arrives SFF from accessing terminal need to be forwarded to the HRPD access network, and need to be forwarded to from the HRPD signaling message that access network arrives SFF and to access terminal.Yet it is unpractical having a SFF for each HRPD access network.What expect is that a SFF serves many HRPD access networks.This feature is mapped to the HRPD network identity of the unique identification of sector ID the IP address of HRPD network, and this IP address is the accessibility IP address in the access network.
With reference to figure 3, this figure illustrated as in the dotted line about 3GPP2, the HRPD IOS framework that defines in the HRPD_IOS standard of A.S0008 is incorporated it into herein by reference.Fig. 3 also comprises the signal forwarding capability.Advantageously, provide switching fast and reliably between HRPD and the non-HRPD at the SFF under this figure and the application background, and the effective solution of cost.In more detail, set up in advance the HRPD session for (accessing to exchange HRPD signaling message and data by utilizing non-HRPD), be necessary to define the alternative path.The method and SFF provide: the alternative path, so that non-HRPD access needn't be processed the HRPD customizing messages and based on the TCP/IP on the data tunnel of non-HRPD; The HRPD signaling message that sends at TCP/IP by non-HRPD is routed to correct access network and accesses terminal; Conversion from the TCP/IP territory to the HRPD territory; And the fail safe of protecting access network to be immune against attacks.
Fig. 4 is for the flow chart of setting up in time the HRPD signal link by non-HRPD air interface, this figure comprises for the row of each access terminal (AT), signal forwarding capability (SFF), access network (AN), access network-AAA (AN-AAA) and time a～h, has illustrated how to open link.
In more detail, an a～h provides order in time to flow in detail.At time a place, AT sets up IP and connects.This IP connection is set up in non-EVDO air interface.At time b place, AT sends the alternative link to the signal forwarding capability and opens request message in the IP carrying.This alternative link is opened request message and is comprised moving station mark.At time c place, the signal forwarding capability obtains to access terminal authentication from AN-AAA when obtaining the alternative link and open request message.At time d place, the signal forwarding capability trigger mobile device authentication so that access terminal and the signal forwarding capability between set up the data tunnel of safety.At time e place, create safe data tunnel at the signal forwarding capability with between accessing terminal.At time f place, the signal forwarding capability sends Axx-alternative link to access network and opens request message.At time g place, access network utilizes Axx-alternative link to open response message the signal forwarding capability is responded.At item h place, the signal forwarding capability is opened response message with the alternative link and is forwarded to and accesses terminal.
This process advantageously provides the effective means of setting up the alternative signaling link, and preferably it can comprise the means of carrying out authentication and setting up secure tunnel for network.In addition, it can comprise providing to find whether access network supports the mechanism of the effective ways of the HRPD signaling on the alternative link, need not notify access network capability by clear and definite means, and these clear and definite means may be consuming time and costliness.
As used herein, access network-AAA (AN-AAA) means access network-authentication, mandate and charging.
Authentication means to confirm that the user of request service is the validated user of the network service of asking.Present to finish authentication via sign and authentication.The example of auth type is password, disposable token (token), digital certificate and telephone number (caller/called).
Mandate means the authentication of the service of asking based on the user and the current system state is ratified service (comprising " without service ") from particular type to the user.But authorize constraint based, for example restriction of time in a day, perhaps physical location restriction is perhaps for the repeatedly restriction of login of same subscriber.Authorize the essence of determining to the service of user's approval.The example of COS includes, but are not limited to: IP address filtering, address assignment, route assignment, QoS/ differentiated service, bandwidth control/service management, transmit and encrypt for the Compulsory Tunnel of specific endpoints.
Charging means to follow the tracks of user's network resource consumption.This Information Availability is in management, planning, record keeping or other purposes.Real time billing means the charge information sent simultaneously with resource consumption.Charging means to preserve charge information until it is being sent a little later in batches.The typical information of collecting in the charging is when essence, the service of user ID, institute's delivery service begins and when finish.
Fig. 5 closes (or stopping) based on the flow chart of the HRPD signal link of non-HRPD air interface in time according to of the present invention, this figure comprises for the row of each access terminal (AT), signal forwarding capability (SFF), access network (AN), access network-AAA (AN-AAA) and time a～f, has illustrated how to stop link.
In a preferred embodiment and in more detail, at time a place, AT set up access terminal and signal forwarding capability (SFF) between safe data tunnel.At time b place, AT sends alternative link-down request message to SFF in the IP carrying.At time c place, when receiving the request of alternative link-down, the signal forwarding capability initiate to close access terminal and access network between the link-attached process of alternative, and send Axx-alternative link-down request message to access network.At time d place, access network responds with Axx-alternative link-down response message.At time e place, SFF finishes the process of closing the alternative link and sends the alternative link-down to accessing terminal and responds.And, at time f place, close access terminal and SFF between safe data tunnel.As used herein, the IP carrying means to use TCP/IP to transmit as the data of the mechanism that is used for end-to-end transportation protocol.
In one embodiment, this provides and has been used for closing or stops based on the HRPD access network of non-HRPD air interface and the alternative signaling link between accessing terminal, and guarantees accessing terminal and the synchronous reliable process of the signaling adaptation state machine that access network moves.
Fig. 6 illustrates the flow chart that exchanges in time the HRPD signaling by the non-HRPD air interface of using TCP/IP according to of the present invention, and this figure comprises the row for each access terminal (AT), signal forwarding capability (SFF), access network (AN), access network-AAA (AN-AAA) and time a～c.
In more detail and in a preferred embodiment, at time a place, AT access terminal and signal forwarding capability (SFF) between set up safe data tunnel.At time b place, AT sends the message of alternative chain circuit message to SFF in the IP carrying.This alternative chain circuit message has the HRPD signaling message of encapsulation, and the HRPD signaling message of this encapsulation has the header information of determining this message to be forwarded to which access network for SFF.And at time c place, when receiving the alternative chain circuit message, SFF is forwarded to suitable access network with this message.This provides and has been used for exchanging pellucidly the mechanism of HRPD signaling message and HRPD data by non-HRPD access, and does not need non-HRPD network to explain and process the HRPD customizing messages.
With reference to Figure 15, but show for HRPD message and HRPD data are transformed into the embodiment that can access by non-HRPD the alternative of the signaling adaptation method 50 on the universal container that transmits.Method 50 comprises step: the 52HRPD agreement is provided, and it comprises signal adaptation agreement (SAP), and this SAP comprises open mode, sets up state and default closed condition; The alternative HRPD signaling link based on non-HRPD access is opened in request 54; When entering open mode, activate 56 alternative HRPD signaling links; With adaptive 58 (and the encapsulation) of HRPD signaling message and HRPD radio link protocol (RLP) data to non-HRPD access; In the situation that do not set up the HRPD Traffic Channel, via this alternative HRPD signaling link access terminal and the HRPD access network between exchange 60HRPD signaling message and HRPD data; And comprise that by insertion the header of sector identification, stream identification and the identification that accesses terminal accesses to identify the 62HRPD access network based on non-HRPD and accesses terminal.The method is carried out and is initiated and the session establishment process, makes time, interruption and the packet loss minimum in the process that switches to the HRPD access network and realizes seamless mobility.
Advantageously, the method provides a kind of mechanism or process for be electrically connected exchange HRPD signaling message and HRPD data by the private radio of non-HRPD technology, the development cost that its multi-mode that can reduce the active session switching that can carry out between non-HRPD wireless technology and the HRPD cellular technology accesses terminal.
For background is provided, with according to sending such as the known method among the 3GPP2 C.S0024-A that is entitled as " cdma2000 HighRate Packet Data Air Interface Specification " in September, 2006 or receiving the HRPD signaling message, need to set up private radio and be electrically connected.This private radio is electrically connected the particular state that is defined as airlink, and wherein AT is assigned forward traffic channel, reverse traffic channel and related media into control channel.Realize therein in the multimode mobile device of HRPD wireless technology and non-HRPD wireless technology, when non-HRPD was positioned at private radio and is electrically connected, it was expensive with unnecessary making the HRPD technology be positioned at simultaneously also that private radio is electrically connected.
Switch (wherein active session mean to access terminal just sending and receiving user data on private radio is electrically connected) in order the multi-mode that has such as the technology of HRPD to be accessed terminal carry out active session from non-HRPD wireless technology to the HRPD wireless technology, set up the HRPD session according to the 3GPP2C.S0024A needs, its be included in access terminal and the HRPD access network between be electrically connected cocommutative HRPD signaling message and HRPD data at private radio.Yet, have two private radios be connected electrically in when realizing be expensive and technical be complicated.
It is a kind of for cost effective method and mechanism by special-purpose non-HRPD dedicated radio link exchange HRPD signaling message and HRPD data that method 50 provides, and its reduction can be carried out the development cost that multi-mode that the active session between non-HRPD wireless technology and the HRPD technology switches accesses terminal.
In a preferred embodiment, method 50 can further be included in the situation of not setting up the HRPD Traffic Channel, provides based on HRPD session, the HRPD point-to-point (PPP) of non-HRPD access and the in advance foundation of HRPD Internet protocol (IP) session.Switch in order to make the multi-mode that has such as the technology of the HRPD active session of carrying out from non-HRPD wireless technology to the HRPD wireless technology that accesses terminal, under 3GPP2 C.S0024A, need to set up HRPD session, PPP session and IP session, its be included in access terminal and the HRPD access network between be electrically connected cocommutative HRPD signaling message and HRPD data at private radio.Realize therein in the multimode mobile device of HRPD wireless technology and non-HRPD wireless technology, and when non-HRPD was positioned at private radio and is electrically connected, it was expensive and technical unnecessary and use valuable in-flight time making the HRPD technology be positioned at simultaneously also that private radio is electrically connected.This is set up in advance feature and allows the multi-mode that a kind of active session that can carry out between non-HRPD wireless technology and the HRPD cellular technology is switched to access terminal.
In another preferred embodiment, method 50 is included in the situation that does not have HRPD access channel process and carries out professional foundation.This has advantageously provided the means by the emission of the alternative link on non-HRPD network HRPD access channel message, so that avoid the access channel process of the HRPD that is used for the acquisition Traffic Channel.
As a setting, current implementation such as HRPD 3GPP2 C.S0024A standard, needs access channel process, and such as the exchange access channel message, it is introduced the extra time the active session from non-HRPD to HRPD is switched.Usually, send access channel message so that obtain about the HRPD access network and Traffic Channel Assignment that the private radio between accessing terminal is electrically connected.
Switch the time of consuming in order to reduce the active session of carrying out from non-HRPD network to the HRPD network, in a preferred embodiment, send access channel message in the situation that do not carry out the access process, therefore effectively avoid this process.This provides the user in effective switching and the improvement handoff procedure to experience.
In another embodiment, method 50 can comprise that providing the alternative link that comprises the sign that accesses terminal to open request message and connection is that IP connects, shown in Figure 12～14.This feature provides the favourable process of wherein opening the sign that transmission accesses terminal in the request message at the alternative link so that access network can verify the authentication that accesses terminal and carry out alternatively authentication and verification process so that guarantee based on non-HRPD network access terminal and access network between secure communications links.
Fig. 7 is such as the explanation of the protocol architecture of HRPD standard I S856 definition, by reference it is incorporated into herein.Fig. 7 also shows the default signaling paths of describing in detail as herein.The figure shows the HRPD layer architecture with modularized design, its part that allows to consult for agreement, software and standalone protocol is upgraded.
The below describes the general discussion of the protocol stack shown in Fig. 7 in detail.Start from right side and moving up, bottom, physical layer provides about the channel architecture of forward direction and reverse chain channel, frequency, power stage, modulation and coding criterion and the agreement of supporting process is provided.Media access control (MAC) layer has defined the agreement of supporting for the process that receives in physical layer and launch.Safe floor provides the agreement of supporting authentication and cryptographic services.Articulamentum provides supports airlink to connect the agreement of foundation and maintenance service.Session layer provides the agreement of supported protocol negotiation, protocol configuration and session status maintenance service.Fluid layer provides the multiplexing agreement of supporting different application stream.Application layer provides supports to be used for transmitting the default signaling application of HRPD protocol message and the application protocol of using for the default grouping that transmits user data.For more details, with reference to HRPD standard I S856.
Fig. 8 illustrates the environment such as the protocol architecture of HRPD standard I S856 definition among Fig. 7 according to the present invention to illustrate, comprises signaling adaptation agreement (SAP) and is in the signaling paths of opening in (operation) position.SAP provides
Fig. 9,10 and 11 shows three embodiment of the signaling adaptation agreement among Fig. 8 and is in the exemplary signaling paths of opening in (operation) state.
In one embodiment, SNP protocol message and RLP grouping are forwarded to SAP, shown in its solid line signaling paths in Fig. 9.
In order in the situation of not setting up HRPD access network and the multi-mode Personal Radio Communications between accessing terminal, to carry out the HRPD session establishment, for example, the method has advantageously provided the process that is used for by signaling network agreement (SNP) signaling message of all seven layers generations of HRPD protocol stack being forwarded to the signaling adaptation agreement.Therefore, by 1) the HRPD signaling message of all layers generation of HRPD is forwarded to signaling adaptation agreement (the solid-line signals path, left side Fig. 9) from SNP; The HRPD data retransmission that and 2) will generate or transmit by radio link protocol (RLP) is to signaling adaptation agreement (by the signaling paths on the right side among Fig. 9), makes the technique influence minimum such as the known implementation of IS-56A HRPD standard.And,
In Fig. 9 and 10, show the SAP state of control switch, this Switch is similar to double-pole switch, and it provides two software connecting valves, with the mode of operation that allows signal to advance (in the dotted line, closed condition) or advance along the solid line signaling paths along default path.
In a second embodiment, as shown in figure 10, signaling link agreement-D (SLP-D) protocol message and RLP grouping are forwarded to SAP.In order to carry out the HRPD session establishment in the situation of not setting up HRPD access network and the multi-mode Personal Radio Communications between accessing terminal, the method has advantageously provided the process that is used for by signaling network agreement (SNP) and signaling link agreement (SLP-D) signaling message of all seven layers generations of HRPD protocol stack being forwarded to the signaling adaptation agreement.Be forwarded to the signaling adaptation agreement by the HRPD signaling message with all layers generation of HRPD by SLP, make SAP not carry out ordering and the re-transmission of signaling message, and therefore simplified the signaling adaptation protocol process.In addition, the HRPD data that generate or transmit by radio link protocol (RLP) are forwarded to the signaling adaptation agreement.
In the 3rd embodiment, as shown in figure 11, the grouping of stream protocol is forwarded to SAP.In order to carry out the HRPD session establishment in the situation of not setting up HRPD access network and the multi-mode Personal Radio Communications between accessing terminal, the method has advantageously provided the process that is used for by signaling network agreement (SNP) and signaling link agreement (SLP-D) and stream protocol the signaling message of all seven layers generations of HRPD protocol stack being forwarded to the signaling adaptation agreement.Be forwarded to the signaling adaptation agreement by the HRPD signaling message with all layers generation of HRPD by stream protocol, make SAP not carry out comprising of the ordering of signaling message and re-transmission and flow identifier and explain, this has further simplified the signaling adaptation protocol process.In addition, cross stream protocol by the HRPD data communication device of radio link protocol (RLP) generation or transmission and be forwarded to the signaling adaptation agreement, further simplified the exploitation of signaling adaptation agreement.
Figure 12 and 13 shows accessing terminal of signaling adaptation agreement and access network state machine, and this state machine comprises closed condition, sets up state and open mode in Fig. 9, has illustrated how to open the alternative link.The method has advantageously provided from non-HRPD alternative link and has effectively transformed to the process of default HRPD signaling link and opposite process thereof.The state transformation that defines in the method and message guarantee to make HRPD network and the multi-mode synchronous effective ways that access terminal.In addition, another advantage of this feature is it in the situation that there is clear and definite signaling that the mechanism of not determined the support of signaling adaptation agreement and the support of alternative link by access network is provided, and this radio frequency resource that has reduced HRPD and non-HRPD wireless system uses.
Figure 14 is that this figure comprises the row for each alternative link, signaling network agreement (SNP), signaling adaptation agreement (SAP), access network (AN) and time a～l according to the flow chart for set up in time the HRPD signal link by non-HRPD air interface of the present invention.In a preferred embodiment, method 50 further comprises the message sequence that is provided for by SAP request and activation alternative link.This feature advantageously provides for setting up means with adaptive HRPD signaling message in the situation that do not set up special-purpose HRPD dedicated radio link in the effective mode of cost.The method also can provide with such as the HRPD access network of under the 3GPP2-C.S0024A standard, having realized and having disposed and the backwards compatibility of mobile device.
In more detail, this flow chart shows the dynamic behaviour of the signaling adaptation agreement in the background of defined other agreements in HRPD standard C .S0024A.At time a place, the mobile device start.At time b place, signaling network protocol activating signaling adaptation agreement.At time c place, its local variable of signaling adaptation protocol initializing and enter closed condition.At time d place, but when the dedicated channel time spent on the alternative link, with this advisory SNP.At time e place, SNP is true with the availability settings on the alternative link.At time f place, SNP detects and need to send signaling message to network.It activates signaling on the alternative link by sending SAP. alternative link activation.At time g place, SAP sends the alternative link to network and opens request message.At time h place, SAP enters the state of foundation and upgrades suitable variable.At time i place, network sends the alternative link and opens response message after it sets up signaling link on the alternative link.This can involve safe data tunnel foundation etc.At time j place, SAP enters open mode and sets suitable variable.At time k place, SAP sends the indication that SAP. alternative link is opened indication to SNP.And at time l place, SNP is set as alternative link open mode very.
Should be appreciated that concept of the present invention disclosed herein can have many modifications.To a certain extent, this modification falls in the scope of claims and equivalent thereof, and present patent application will contain this modification.

Claims (7)

  1. One kind by non-HRPD access at the HRPD access network with set up the method for alternative HRPD signaling link between accessing terminal, comprising:
    Access by non-HRPD and to set up in advance the HRPD session, described non-HRPD access is defined as at least one in non-HRPD air interface, non-HRPD access network and the non-HRPD core network;
    Access terminal and HRPD (high rate packet data) (HRPD) access network between signal forwarding capability (SFF) is provided;
    Described access terminal and described SFF between set up data tunnel;
    Via described data tunnel exchange HRPD signaling message and HRPD data;
    By reading header and described header being mapped to described accessing terminal and one of them address of described HRPD access network, access to identify described HRPD access network and described accessing terminal by described SFF by non-HRPD, described header comprises the identification of HRPD sector, identification and stream identification access terminal; And
    The described HRPD signaling message and the described HRPD data that arrive described SFF are forwarded to respectively described HRPD access network and described accessing terminal from described accessing terminal with described HRPD access network.
  2. 2. the method for claim 1 further comprised the steps: before the HRPD air interface is set up Traffic Channel, carried out authentication and set up in advance the HRPD session from non-HRPD access.
  3. 3. the method for claim 1, wherein said data tunnel is safe.
  4. 4. the method for claim 1, further comprise the steps: to allow by non-HRPD access described access terminal and described HRPD access network between the HRPD access channel message transmit affairs.
  5. 5. the method for claim 1, wherein said HRPD access network comprises at least one in base station controller and the radio network controller.
  6. 6. the method for claim 1 further comprises: close described access terminal and described SFF between described data tunnel.
  7. 7. the method for claim 1 further comprises following at least one in every: provide interface between described HRPD access network and described SFF; Between described SFF and described HRPD access network, provide interface; The described HRPD identification that accesses terminal is mapped to IP address by described non-HRPD network assigned; And, by sector ID being mapped to the IP address of described HRPD access network, come the message of route encapsulation by IP by SFF.
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Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7546124B1 (en) * 2004-12-07 2009-06-09 Nortel Networks Limited Support for handoffs in high rate packet data systems
JP4749309B2 (en) * 2006-10-30 2011-08-17 京セラ株式会社 Wireless communication device
US8576795B2 (en) 2007-03-16 2013-11-05 Qualcomm Incorporated Method and apparatus for handoff between source and target access systems
US8289920B2 (en) 2007-03-16 2012-10-16 Qualcomm Incorporated Method and apparatus for handoff between access systems
US8886188B2 (en) * 2007-03-20 2014-11-11 Qualcomm Incorporated Method and apparatus for transfer of session reference network controller
US9049629B2 (en) 2007-06-18 2015-06-02 Qualcomm Incorporated Method and apparatus for fast inter-system handover
US8780856B2 (en) * 2007-09-18 2014-07-15 Telefonaktiebolaget Lm Ericsson (Publ) Inter-system handoffs in multi-access environments
US8755793B2 (en) 2008-01-04 2014-06-17 Qualcomm Incorporated Apparatus and methods to facilitate seamless handoffs between wireless communication networks
US8842632B2 (en) * 2008-02-14 2014-09-23 Alcatel Lucent Pre-registration, storing of pre-registration session information and session transfer in a wireless communication system
KR101569952B1 (en) * 2008-04-17 2015-11-17 애플 인크. Performing processing with respect to an overhead message for a mobile station in tunnel mode
US8165090B2 (en) * 2008-05-15 2012-04-24 Nix John A Efficient handover of media communications in heterogeneous IP networks
US8638749B2 (en) * 2008-06-06 2014-01-28 Qualcomm Incorporated Method and apparatus for inter-network handoff
US20100046477A1 (en) * 2008-08-19 2010-02-25 Motorola, Inc. Method for Hand-Over In A Heterogeneous Wireless Network
CN101754313B (en) * 2008-11-28 2012-07-04 华为技术有限公司 Pilot measuring control method and dual-mode terminal
CN101778441B (en) * 2009-01-09 2013-03-27 中兴通讯股份有限公司 Activation switch method and terminal based on HRPD (High Rate Packet Data) system
US8781509B2 (en) * 2009-05-08 2014-07-15 Zte (Usa) Inc. Interworking circuit service fall back
US8977303B2 (en) * 2009-05-08 2015-03-10 Zte Corporation Interworking circuit service fall back
US8194615B2 (en) * 2009-05-21 2012-06-05 Motorola Mobility, Inc. Method for conserving resources during wireless handover of a dual mode mobile station
CN101945463B (en) * 2009-07-08 2013-04-17 华为技术有限公司 Method and equipment for obtaining signaling forwarding function (SFF) entity information
US20110013559A1 (en) * 2009-07-16 2011-01-20 Motorola, Inc. Wireless communication via a tunnel through a serving access network
CN101959173B (en) * 2009-07-17 2013-06-05 华为技术有限公司 Data transmission method, communication system and related equipment
CN102026321B (en) * 2009-09-18 2013-04-17 华为技术有限公司 Transfer method and terminal of wireless access network post-reselection state machine
US9420503B2 (en) * 2014-01-21 2016-08-16 Cisco Technology, Inc. System and method for seamless mobility in a network environment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1859310A (en) * 2006-03-30 2006-11-08 华为技术有限公司 Method and system for establishing high speed block data network block data conversation
CN1983872A (en) * 2006-05-12 2007-06-20 华为技术有限公司 Method for transmitting HRPD network data with terminal under 1x network

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432843A (en) 1993-08-02 1995-07-11 Motorola Inc. Method of performing handoff in a cellular communication system
DE69837333T2 (en) 1998-10-19 2007-12-20 Nortel Matra Cellular A method and apparatus for establishing a radio connection with a destination base station in a cellular or wireless mobile communication system
US7032119B2 (en) 2000-09-27 2006-04-18 Amphus, Inc. Dynamic power and workload management for multi-server system
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
US6961572B2 (en) 2001-12-20 2005-11-01 Motorola, Inc. Method and apparatus for base-initiated, CDMA-dispatch soft handoff
US7379739B2 (en) 2002-11-14 2008-05-27 Samsung Electronics Co., Ltd. Apparatus and method for selecting a handoff base station in a wireless network
AU2003303470A1 (en) * 2002-12-30 2004-07-22 Sk Telecom Co., Ltd. Method and system for notifying 1xev-do system of switching from 1xev-do system to 1x system
CN1748433B (en) 2003-02-05 2011-09-21 摩托罗拉移动公司 Network assisted cell reselection in wireless communications systems and methods
KR100987217B1 (en) * 2003-03-05 2010-10-12 삼성전자주식회사 Handoff method in high rate packet data mobile communication
EP1659806A4 (en) 2003-08-27 2010-04-07 Fujitsu Ltd Handover method and base station control device
US7773554B2 (en) 2003-12-03 2010-08-10 John Wallace Nasielski Methods and apparatus for CDMA2000/GPRS roaming
JP4310659B2 (en) 2004-05-17 2009-08-12 日本電気株式会社 Mobile communication system and method for handover to small radio base station
KR100965694B1 (en) 2004-06-15 2010-06-24 삼성전자주식회사 System and method for supporting soft handover in a broadband wireless access communication system
US7620017B2 (en) * 2004-09-21 2009-11-17 Motorola, Inc. Method and apparatus to facilitate inter-AN HRPD hard handoff
KR100680749B1 (en) 2004-11-05 2007-02-08 삼성전자주식회사 Apparatus and method of handover on cellular system using the heterogeneous wireless network
US7787421B2 (en) 2004-11-22 2010-08-31 Motorola, Inc. Method and system for inter-technology active handoff of a hybrid communication device
US8320326B2 (en) 2004-11-22 2012-11-27 Motorola Mobility Llc Method and system for inter-technology active handoff of a hybrid communication device
US20060203845A1 (en) 2005-03-09 2006-09-14 Pantelis Monogioudis High-rate wireless communication mehod for packet data
WO2006117587A1 (en) 2005-05-04 2006-11-09 Telecom Italia S.P.A. Method for the optimization of the channel scanning function in a telecommunication network for mobile terminals
US7738882B2 (en) 2005-06-13 2010-06-15 Toshiba America Research, Inc. Framework of media-independent pre-authentication improvements: including considerations for failed switching and switchback
JP4790017B2 (en) 2005-08-29 2011-10-12 ケイティーフリーテル カンパニー リミテッド Method and apparatus for automatically optimizing neighbor list in synchronous CDMA network
US20070153769A1 (en) * 2005-12-30 2007-07-05 Comstock David R Method of locating and transferring session information between access nodes in a radio access network
EP2074720B1 (en) 2006-09-28 2018-11-14 Samsung Electronics Co., Ltd. A system and method of providing user equipment initiated and assisted backward handover in heterogeneous wireless networks
US8289920B2 (en) 2007-03-16 2012-10-16 Qualcomm Incorporated Method and apparatus for handoff between access systems
EP2019564A1 (en) 2007-06-26 2009-01-28 Nokia Siemens Networks Oy An apparatus for contolling handover
US20090186611A1 (en) 2007-12-18 2009-07-23 Voyant International Corporation Aircraft broadband wireless system and methods
US20100046477A1 (en) 2008-08-19 2010-02-25 Motorola, Inc. Method for Hand-Over In A Heterogeneous Wireless Network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1859310A (en) * 2006-03-30 2006-11-08 华为技术有限公司 Method and system for establishing high speed block data network block data conversation
CN1983872A (en) * 2006-05-12 2007-06-20 华为技术有限公司 Method for transmitting HRPD network data with terminal under 1x network

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